4B38
0 Tubes in archive
BrandNippon Electric Co. Ltd
ClassAir Cooled Beam Power Tube
BaseE32S-2
Filament6.3V @ 4.8mA
Construction
Primary TypeBeam Power Tube
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesWarming up time: 60 seconds
Absolute Maximum Ratings
Plate Voltage1250 V
Plate Dissipation150 W
Grid 2 Voltage400 V
Cathode Current600 mA
H-C Voltage500 V
Audio Performance
Power Output450 W
Key Features
- Indirectly Heated
- Oxide Coated Cathode
- Natural Convection Cooling
- Forced Air Cooling Option
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| AF Power Amplifier Class AB1 (Two Tubes) | 800V | 20000 | - | - | 800mA |
| AF Power Amplifier Class AB1 (Two Tubes) | 1000V | 20000 | - | - | 720mA |
| Cathode Follower Amplifier (Two Tubes) | 800V | - | - | - | 800mA |
Application Notes
When fixed bias is used, grid No.1 circuit resistance should be 50k Ohms or less. Peak Cathode to Grid No.1 Voltage should never exceed +300 Volts.
Datasheet Viewer
Loading datasheet...
Sort by
Showing 1 to 0 of 0 results